Patents by Inventor Toshiyuki Kato

Toshiyuki Kato has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210090499
    Abstract: A current limiting circuit includes: a gain calculation circuit which calculates a screen power value based on pixel values and calculates a gain based on the screen power value; and a gain multiplication circuit which multiplies the pixel values by the gain, and when a maximum value of the pixel values exceeds a first threshold value, the gain calculation circuit calculates the screen power value by use of a common pixel value greater than or equal to the maximum value instead of the pixel values, and when the screen power value exceeds a control target power value, the gain calculation circuit sets the gain to a ratio of the control target power value with respect to the screen power value, and when the screen power value is less than or equal to the control target power value, the gain calculation circuit sets the gain to 1.
    Type: Application
    Filed: September 21, 2020
    Publication date: March 25, 2021
    Applicant: JOLED INC.
    Inventor: Toshiyuki KATO
  • Publication number: 20210080925
    Abstract: A sensor data input device obtains a plurality of sensor data sequences, each indicating time-series sensor values generated by measuring a work of a working subject using a sensor. A class data generator determines a plurality of intervals obtained by temporally dividing each sensor data sequence based on the sensor values, determines classes of the intervals, each class indicating a type of temporal variations in the sensor values included in one of the intervals, and generates a plurality of first class data sequences for each sensor data sequence, each first class data sequence indicating the intervals and the classes of the sensor data sequence. A class data linker associates the corresponding intervals having an identical class with each other, among the plurality of first class data sequences. A determiner calculates characteristic values of the intervals associated with each other.
    Type: Application
    Filed: May 31, 2018
    Publication date: March 18, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Toshiyuki HATTA, Ryosuke KAWANISHI, Koji SHIRATSUCHI, Kenta KATO, Haruhisa OKUDA
  • Patent number: 10924698
    Abstract: A solid-state imaging element including pixel signal read lines, and a pixel signal reading unit for reading pixel signals from a pixel unit via the pixel signal read line. The pixel unit includes a plurality of pixels arranged in a matrix form, each pixel including a photoelectric conversion element. In the pixel unit, a shared pixel in which an output node is shared among a plurality of pixels is formed, and a pixel signal of each pixel in the shared pixel is capable of being selectively output from the shared output node to a corresponding one of the pixel signal read lines. The pixel signal reading unit sets a bias voltage for a load element which is connected to the pixel signal read line and in which current dependent on a bias voltage flows in the load element, to a voltage causing a current value to be higher than current upon a reference bias voltage when there is no difference between added charge amounts, when addition of pixel signals of the respective pixels in the shared pixel is driven.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: February 16, 2021
    Assignee: Sony Corporation
    Inventors: Yuichi Kato, Yoshikazu Nitta, Noriyuki Fukushima, Takashi Suenaga, Toshiyuki Sugita
  • Patent number: 10890625
    Abstract: A battery model includes a series connection of a direct current resistance model, a charge transfer resistance model derived from the Butler-Volmer equation, and a diffusion resistance model. A battery state estimating device includes a storage unit and a parameter calculating unit. The storage unit stores information on the resistance parameter related to the resistance component of the diffusion resistance model, the time constant parameter related to the time constant of the diffusion resistance model, and the charge parameter of the charge transfer resistance model, in association with temperature information of the secondary battery. The parameter calculating unit calculates each of the parameters corresponding to the detected temperature value based on a detected temperature value of the secondary battery and the information stored in the storage unit.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: January 12, 2021
    Assignee: DENSO CORPORATION
    Inventors: Toshiyuki Kawai, Keiichi Kato, Yuji Koike, Hideaki Tanaka, Shuntaro Kono
  • Patent number: 10879359
    Abstract: A silicon carbide epitaxial wafer (10) of the present invention is a silicon carbide epitaxial wafer including: a silicon carbide substrate (1) and a silicon carbide layer (2) provided on a first principal plane (1A) of the silicon carbide substrate (1) and having a film thickness of 100 ?m or more, wherein a warpage amount of the silicon carbide epitaxial wafer is ?20 ?m or more and 20 ?m or less.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: December 29, 2020
    Inventors: Keiko Masumoto, Satoshi Segawa, Kazutoshi Kojima, Tomohisa Kato, Toshiyuki Ohno
  • Publication number: 20200388200
    Abstract: The present invention provides a head-up display apparatus capable of properly presenting information to a wide area. A head-up display apparatus includes: an image light output unit configured to output a first image display light formed by a visible light laser and a second image display light formed by an ultraviolet light laser; a screen that diffuses and transmits the first image display light, and transmits the second image display light without diffusing the second image display light; and a mirror that reflects the first and the second image display lights transmitted through the screen towards a windshield that presents a virtual image to a user by reflecting the visible light laser and presents a real image to the user by receiving the ultraviolet light laser and emitting light by itself.
    Type: Application
    Filed: August 24, 2020
    Publication date: December 10, 2020
    Inventor: Toshiyuki KATO
  • Patent number: 10862261
    Abstract: A laser medium unit includes: a plate-shaped laser gain medium which includes a first surface and a second surface opposite to the first surface and generates emission light by the irradiation of excitation light from the first surface; a reflection member that is provided on the second surface so as to reflect the excitation light and the emission light; and a cooling member that cools the laser gain medium. The laser gain medium includes an irradiation area which is irradiated with the excitation light and an outer area which is located outside the irradiation area when viewed from a thickness direction intersecting the first surface and the second surface. The cooling member is thermally connected to the second surface through the reflection member so that a cooling area of the laser gain medium is formed on the second surface.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: December 8, 2020
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Kenichi Ueda, Koichi Iyama, Yoshinori Kato, Takashi Sekine, Toshiyuki Kawashima
  • Publication number: 20200357586
    Abstract: A gas circuit breaker of an embodiment includes a sealed container, a first contact part and a second contact part, an operation mechanism, an insulating nozzle, a pressure accumulator, and an electric field shield. The insulating nozzle is displaced in conjunction with the first contact part in a separation process of the first contact part and the second contact part. The insulating nozzle surrounds arc discharge generated between the first contact part and the second contact part. The electric field shield is attached to the insulating nozzle. The electric field shield has a floating potential during a period of at least part of the separation process. The electric field shield is electrically connected to the second contact part such that the electric field shield has the same potential in a completely open electrode state in which separation between the first contact part and the second contact part is terminated.
    Type: Application
    Filed: July 29, 2020
    Publication date: November 12, 2020
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Amane MAJIMA, Tooru INOUE, Toshiyuki UCHII, Norimitsu KATO, Akira SHIMAMURA, Takanori YASUOKA, Tsutomu TANAKA, Tadashi MORI
  • Patent number: 10826263
    Abstract: A laser medium unit includes: a plate-shaped laser gain medium which includes a first surface and a second surface opposite to the first surface and generates emission light by the irradiation of excitation light from the first surface; a reflection member that is provided on the second surface so as to reflect the excitation light and the emission light; and a cooling member that cools the laser gain medium. The laser gain medium includes an irradiation area which is irradiated with the excitation light and an outer area which is located outside the irradiation area when viewed from a thickness direction intersecting the first surface and the second surface. The cooling member is thermally connected to the second surface through the reflection member so that a cooling area of the laser gain medium is formed on the second surface.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: November 3, 2020
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Kenichi Ueda, Koichi Iyama, Yoshinori Kato, Takashi Sekine, Toshiyuki Kawashima
  • Publication number: 20200279528
    Abstract: A processing circuit processes video signals for a display device which includes a display panel including pixels each having a self light emitting element and a current limiting circuit limiting a current to the pixels. The processing circuit includes: a frame memory storing video signals of a previous frame; and a signal processer which: compares a luminance represented by a video signal of the current frame corresponding to a pixel and a luminance represented by a video signal of the previous frame corresponding to the pixel; outputs the video signal of the current frame in a case where the luminance represented by the video signal of the current frame is equal to or smaller than the luminance represented by the video signal of the previous frame or equal to or smaller than a predetermined threshold value; and outputs a weighted average of the video signal of the current frame and the video signal of the previous frame in any other case.
    Type: Application
    Filed: January 28, 2020
    Publication date: September 3, 2020
    Applicant: JOLED INC.
    Inventor: Toshiyuki KATO
  • Publication number: 20200273647
    Abstract: There is provided a gas circuit breaker that can spray arc-extinguishing gas to arcs while preventing a spraying velocity from being reduced and can efficiently and more surely extinguish the arcs that have been generated in a scatteredly around electrodes. A gas circuit breaker 1 includes an insulation nozzle 23 that guides arc-extinguishing gas to an arc between the first arc contactor 21 and a second arc contactor 41 when a trigger electrode 31 becomes an opened state relative to a first arc contactor 21. A second arc contactor 41 has an opening 41a for spraying the arc-extinguishing gas, and the opening 41a is closed by the trigger electrode 31 in the first half of a current breaking action, and is opened by separation of the trigger electrode in the latter half of the current breaking action. An opening area of a first exhaust port 41b formed between the second arc contactor 41 and the insulation nozzle 23 for exhausting the arc-extinguishing gas is 0.
    Type: Application
    Filed: November 10, 2017
    Publication date: August 27, 2020
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Toshiyuki UCHII, Takanori IIJIMA, Tomoyuki YOSHINO, Norimitsu KATO, Tsutomu TANAKA
  • Publication number: 20200238835
    Abstract: A controller of an embodiment includes a limiter receiving an active current command initial value, limiting a maximum value of the active current command initial value with a predetermined value, and outputting a first value; a circuit to calculate a reactive current command initial value; a calculator to calculate a reactive current command adjustment value; a unit receiving the first value as an input, and calculating a reactive current upper limit value such that a composite value of the first value and the reactive current upper limit value is equal to or smaller than an input current maximum value; and a limiter to output the reactive current command adjustment value or the reactive current upper limit value, whichever is smaller. The predetermined value is a value to set the reactive current upper limit value to a value larger than zero and smaller than the input current maximum value.
    Type: Application
    Filed: January 27, 2020
    Publication date: July 30, 2020
    Applicants: Central Japan Railway Company, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Ken KUNOMURA, Toshimasa SHIMIZU, Kenji SATO, Hirokazu KATO, Kazuaki YUUKI, Toshiyuki UCHIDA, Masatsugu MORITA, Hiroki MIYAJIMA, Yukitaka MONDEN
  • Patent number: 10719496
    Abstract: This computer system includes a plurality of nodes for forming a distributed KVS. The plurality of nodes have a plurality of key ranges to which upper-limit data amounts are set, each upper-limit data amounts being an upper limit of an amount of manageable data. When a new key range is created, the plurality of nodes lowers an upper-limit data amount of an existing key range so that the sum of an upper-limit data amount of the new key range and an upper-limit data amount of the existing key range does not exceed a maximum amount which is the amount based on the volume of the memory of the computer apparatus.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: July 21, 2020
    Assignee: HITACHI, LTD.
    Inventors: Yutaro Kato, Takashi Suzuki, Toshiyuki Hasegawa, Nobuyuki Yamamoto
  • Patent number: 10720243
    Abstract: The laser amplification apparatus is provided with a plurality of plate-shaped laser medium components (M1 to M4) which are disposed to be aligned along a thickness direction, and prisms (P1 to P3) which optically couples the laser medium components. Each of the laser medium components is provided with a main surface to which a seed light is incident, and a side surface which surrounds the main surface. An excitation light is incident from at least one side surface of a specific laser medium component among the plurality of laser medium components. The excitation light is incident through the prism to a side surface of the laser medium component adjacent to the prism.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: July 21, 2020
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Takashi Sekine, Yoshinori Kato, Yasuki Takeuchi, Toshiyuki Kawashima
  • Patent number: 10686045
    Abstract: A semiconductor memory device according to an embodiment, includes a pair of first electrodes, a semiconductor pillar, an inter-pillar insulating member, a first insulating film, a second electrode, and a second insulating film. The pair of first electrodes are separated from each other, and extend in a first direction. The semiconductor pillar and the inter-pillar insulating member are arranged alternately along the first direction between the pair of first electrodes. The semiconductor pillar and the inter-pillar insulating member extend in a second direction crossing the first direction. The first insulating film is provided at a periphery of the semiconductor pillar. The second electrode is provided between the first insulating film and each electrode of the pair of first electrodes. The second electrode is not provided between the semiconductor pillar and the inter-pillar insulating member. The second insulating film is provided between the second electrode and the first electrode.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: June 16, 2020
    Assignee: Toshiba Memory Corporation
    Inventors: Tatsuya Kato, Fumitaka Arai, Katsuyuki Sekine, Toshiyuki Iwamoto, Yuta Watanabe, Wataru Sakamoto
  • Patent number: 10663524
    Abstract: A battery state estimating apparatus includes an updating unit. The updating unit updates a charge-transfer impedance model in a battery model of a secondary battery, which is a series connection of a DC resistance model, a charge-transfer impedance model, and an diffusion impedance model, using the amount of change in a measurement value of a current flowing through the secondary such that a first relationship between the current flowing through the secondary battery and a voltage across the charge-transfer resistance approaches a second relationship between an actual value of the current and an actual value of the voltage across the charge-transfer resistance. The first relationship between the current flowing through the secondary battery and the voltage across the charge-transfer resistance is defined based on the Butler-Volmer equation. A state estimator estimates a state of the secondary battery based on the battery model including the updated charge-transfer impedance model.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: May 26, 2020
    Assignee: DENSO CORPORATION
    Inventors: Toshiyuki Kawai, Keiichi Kato, Yuuji Koike
  • Patent number: 10666130
    Abstract: According to one embodiment, an electric power conversion system includes a convertor, a detector, a delay controller, and a determinator. The detector is configured to detect information related to a voltage of electric power converted by the converter. The delay controller is configured to delay a conversion operation start of the converter by a first predetermined time with respect to a supply start time at which supply of the electric power is started. The determinator is configured to perform a first determination on the basis of a detection result detected by the detector before elapse of the first predetermined time from the supply start tune, and to perform a second determination on the basis of a detection result detected by the detector after the elapse of the first predetermined time from the supply start time.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: May 26, 2020
    Assignees: CENTRAL JAPAN RAILWAY COMPANY, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Kenji Sato, Hirokazu Kato, Takafumi Fukushima, Hiroaki Otani, Tomoyuki Makino, Toshiyuki Uchida, Manato Mori
  • Patent number: 10629197
    Abstract: A voice processing system includes a voice acquisition unit that acquires an utterance of a user, a voice recognition unit that recognizes contents of the utterance acquired by the voice acquisition unit, an execution unit that executes processing based on a result of the voice recognition unit, and a determination unit that determines a candidate of a word to substitute a certain word. When the voice recognition unit recognizes a request including a first word, the execution unit executes the request including the first word and provides the user with a processing result. The determination unit determines a second word that is a substitute candidate of the first word. The execution unit also executes a request including the second word instead of the first word and stores a processing result in a storage unit.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: April 21, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Sei Kato, Junichi Ito, Takuma Minemura, Junya Masui, Toshiyuki Namba
  • Patent number: 10622528
    Abstract: A light-emitting device includes: a resin package including: a lead part including a first lead and a second lead, each including a main body portion and a raised portion connected to the main body portion, wherein an upper surface of each of the first lead and the second lead includes a first primary surface portion in the main body portion and a curved portion in the raised portion in a cross-sectional view taken in a direction perpendicular to an upper surface of the lead part, and wherein the curved portion is continuous with and curved upward from an end portion of the first primary surface portion, a resin portion, and a recess defined by a portion of the upper surface of the lead part and the resin portion; and a light-emitting element mounted in the resin package. The curved portion is buried in the resin portion.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: April 14, 2020
    Assignee: NICHIA CORPORATION
    Inventors: Hironao Oku, Toshiyuki Hashimoto, Mitsuhiro Isono, Takao Ishihara, Takaaki Kato
  • Publication number: 20200106237
    Abstract: A laser device is a laser device that includes an output unit that outputs seed light to a light amplifying unit. The output unit has a light source unit that outputs, as the seed light, rays of light with a plurality of wavelengths lying within a gain range of the light amplifying unit, and a seed light control unit that controls an intensity-time waveform of the seed light output from the light source unit.
    Type: Application
    Filed: November 21, 2017
    Publication date: April 2, 2020
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Takashi KURITA, Yoshinori KATO, Toshiyuki KAWASHIMA